Cushion-heel.



s. 1). SMITH. CUSHION HEEL.

APPLICATION FILED MAY 29, 1914.

1, 1 1 4,302, Patented 0.01:. 20, 1914. y

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T'o allwhomit'mayco ncernq SAMUEL SMITH; of East Dedham in th'ecou'nty of-iNorfolk'i and State of.Massachuset ts, hays invented l leaving of cavities specification.

STATESPATENT OFFICE-j;

Be itknown that 13' certainnew' and usefulfllinpro ements {in h1sh1onHeel s, of

This .'in-vention;relates' to cushion iheels or heeltrads of the kind usuallyknown, as: rubber heels; Such heels are in great 'de-Y- mand in spite of their-"lack of idurabilityzj. Attempts have been made to increase their wearing qualities but, 'so far as "I am. award-f all such attempts haye either impaired the. resilience of the heelsor have jresulted inth'e wh n-- ge :na

The object-of my-invention ,i sl-to' proVi'de'acushion heel having wear-resisting plu s' in; those portions of the treac'l' surface which are usually firstworn downa-theplugs being; of aform which present solidlwear,surfacesthat wear well-and prevent thelpicking up 1 of dirt,f the Whole beingls o constructed that 1.

the elasticity ot the heel not; lessened by the presence of theplugs'.

To this end, my invention consistsfini'the Y improved cushion heel -01 tread which shall now proceed tol desribe'and claim.

Of the acconipanylng drawings 2- Figure; 1 isa bottom view of an elastic heel-tread.

embodying niy invention; Fig. 2 is a top iew of thesarhe; Fig. 3 represents a'section. on line 3 3of Fig. 1. I '1 The body 12 of the tread composed-10f.

rubber or any of the compositions used for elastic or cushion heels'orheel-treads, 1s

shown as formed with holes 13 as usualfior the nails which secure the said body to the heel portion of a shoe, or to leatherheel lifts. Y Such holes may extend 'entirelyior but partially through'the body. They constitute no partof this invention. In fact the body may be secured in place by" any suit-- able' neans. Atthe rear, of the heel, which is the portion that first shows wear; is a row of wear-resisting plugs having solid heads 114 substantially flush with the tread surfacel and fill or partially fill the holes wlth solid plugs. but such plugs do not yield becausev 105 shank to form a flange 17 which is preferably oiffgreater diameter than the flange 10 Specification of Letters Patent;

which-the .fiollowing is a' ousiilonqinnn- I i alinement with the lcai ity 18- of the plug, I

extending to the upper surface-of the body;

the bottom of I a 'mold; said pins fitting;- the {sh ank 's'between the'flan'ges 16, 117 and then vulcanized, from the'niold, the holes 19 are theiresult ofhowever, "are; deliberately fmfmed in' the (the user is walking than they'eould'i-f the wordsthe holes .19 compensateffor hardness "of; the plugs'so that the. elasticity of-the c0 urs e,- when the body; is secured in place so tween said, flanges. oth flanges act to prevent the plug from being forced up into the pressed. tendingto force the .plugs into the than the flange 16-causes the mziterialof the am also aware that solid plugs have been embedded in rubber soles and heels, the plugs extending" entirely through from one surface 'the body is formed witha hole or recess 19 the presence} in I the mold' or, the 'plug-su'p-J porting, .plns mentioned. -Thesel holes 19,

to' perform*-thei 'servic'e,-jwhen the article is in use, of reducing the'solidityof v the'elastic substance abovethe plugsgto per; m t the plugs to -yield inorerea dily when" body were solidtabove the plugsi In other body tobe pressed morefirinly in between Q I am aware that tubular wear-pieces; open at, their outer ends, have been-tembedded n v SAMUELID. SMITH OFE AST DEDHAM,'MASSACHUSET'1TSQ AssIqNon OFVONEHALE: ro

n r I Patented OctLZOQlQld; -e hppiicatioaflai en'a 'zs,1914. isenaindisuses.

: In the manufacture ofthe article,- the plugsare' supported by 'piiis rising from cavities Ofthe' plugs which then of coursdlpresent"theirheadsils upwardly the material ofthe bodyis thenycaused tolfill the mold and to enter. the spaces around. the-, r When the-article. is removed heelis'wnot impaired'f by the plugs. Of

tightly thatnoj-ai'r can escapefromthe holes a 19', the confined air 'causesflan' additional cushioning e' fiect. .No air can 'escape'around the plugs owing to thefianges' 16, 17, andthe material of the bodv'. which is packed, be

devices pick up, dirt "and mar carpetsand I the rubber. I am also aware thatit has been to the other of the rubber. entirely destroys any cushioning efiect of the rubber. I do not claim any of these ideas as within my invention, but

-What I do claim is:

l. A cushion heel having holes extending upwardly from its tread surface and a plug secured in the lower end of each hole and having a length less than the depth of said holes to permit the heel to me compressed without lessening of the cushioning efiect Obviously this by the plugs.

2. A cushion heel having holes extending upwardly from its tread surface and a plug secured in the lower end of each hole and having alength less than the depth of said holes to permit the heel to be compressed without lessening of the cushioning efiect by the plugs, the said plugs having solid each, by

heads at their lower ends at theirends. o

3. A cushion heel having holes extending upwardly from its tread surface and a plug secured in the lower end of each hole and having a length less than the depth of said and having flanges holes to permit the heel to be compressed i of the cushioning effect without lessening said plugs having solld by the plugs, the

heads at their lower ends and having flanges A. W. HARRISON, GEORGE A. ROCKWELL.

addressing the Commissioner of Patents,

Washington, D. C. 

